WO2007097787A3 - Method for electromagnetic air-wave suppression by active cancellation and shielding - Google Patents

Method for electromagnetic air-wave suppression by active cancellation and shielding Download PDF

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Publication number
WO2007097787A3
WO2007097787A3 PCT/US2006/041687 US2006041687W WO2007097787A3 WO 2007097787 A3 WO2007097787 A3 WO 2007097787A3 US 2006041687 W US2006041687 W US 2006041687W WO 2007097787 A3 WO2007097787 A3 WO 2007097787A3
Authority
WO
WIPO (PCT)
Prior art keywords
shielding
wave suppression
electromagnetic air
active cancellation
source
Prior art date
Application number
PCT/US2006/041687
Other languages
French (fr)
Other versions
WO2007097787A2 (en
Inventor
Scott S Hornbostel
Warren S Ross
Leonard J Srnka
Original Assignee
Exxonmobil Upstream Res Co
Scott S Hornbostel
Warren S Ross
Leonard J Srnka
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exxonmobil Upstream Res Co, Scott S Hornbostel, Warren S Ross, Leonard J Srnka filed Critical Exxonmobil Upstream Res Co
Priority to US12/161,785 priority Critical patent/US8165815B2/en
Priority to CA2643057A priority patent/CA2643057C/en
Priority to AU2006338605A priority patent/AU2006338605B2/en
Priority to EP06836529A priority patent/EP1991886A4/en
Publication of WO2007097787A2 publication Critical patent/WO2007097787A2/en
Priority to NO20083992A priority patent/NO341466B1/en
Publication of WO2007097787A3 publication Critical patent/WO2007097787A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/083—Controlled source electromagnetic [CSEM] surveying
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • G01V3/17—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction

Abstract

Method for reducing air wave and/or magnetotelluric noise in controlled source electromagnetic surveying by either shielding the source (61) from the air interface, shielding the receivers from downward traveling electromagnetic energy, or by employing a second source (62) to preferentially cancel the air wave (and MT) part of the signal, or a combination of the preceding.
PCT/US2006/041687 2006-02-21 2006-10-27 Method for electromagnetic air-wave suppression by active cancellation and shielding WO2007097787A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US12/161,785 US8165815B2 (en) 2006-02-21 2006-10-27 Method for electromagnetic air-wave suppression by active cancellation and shielding
CA2643057A CA2643057C (en) 2006-02-21 2006-10-27 Method for electromagnetic air-wave suppression by active cancellation and shielding
AU2006338605A AU2006338605B2 (en) 2006-02-21 2006-10-27 Method for electromagnetic air-wave suppression by active cancellation and shielding
EP06836529A EP1991886A4 (en) 2006-02-21 2006-10-27 Method for electromagnetic air-wave suppression by active cancellation and shielding
NO20083992A NO341466B1 (en) 2006-02-21 2008-09-19 Method of electromagnetic suppression of air waves by active cancellation and protection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US77506106P 2006-02-21 2006-02-21
US60/775,061 2006-02-21

Publications (2)

Publication Number Publication Date
WO2007097787A2 WO2007097787A2 (en) 2007-08-30
WO2007097787A3 true WO2007097787A3 (en) 2009-05-07

Family

ID=36764473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/041687 WO2007097787A2 (en) 2006-02-21 2006-10-27 Method for electromagnetic air-wave suppression by active cancellation and shielding

Country Status (6)

Country Link
US (1) US8165815B2 (en)
EP (1) EP1991886A4 (en)
AU (1) AU2006338605B2 (en)
CA (1) CA2643057C (en)
NO (1) NO341466B1 (en)
WO (1) WO2007097787A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO327007B1 (en) * 2006-05-24 2009-04-06 Norsk Hydro As Method for electromagnetic geophysical mapping of subsea rock formations
US7659724B2 (en) 2007-03-29 2010-02-09 Westerngeco L.L.C. Surveying method using an arrangement of plural signal sources
US7949470B2 (en) 2007-11-21 2011-05-24 Westerngeco L.L.C. Processing measurement data in a deep water application
US7795873B2 (en) 2008-07-15 2010-09-14 Mtem Ltd Method for attenuating air wave response in marine electromagnetic surveying
GB0900906D0 (en) 2009-01-20 2009-03-04 Schlieffers Jorg Removing or reducing the airwave in CSEM data by using weighted field differences
US20120179372A1 (en) 2010-07-22 2012-07-12 Alexander Edward Kalish Collecting Control Source Electromagnetic Signals
US8797036B2 (en) * 2012-02-29 2014-08-05 Pgs Geophysical Methods and apparatus for adaptive source electromagnetic surveying
US9274241B2 (en) * 2013-03-14 2016-03-01 Pgs Geophysical As Method and system for suppressing swell-induced electromagnetic noise
US10338253B2 (en) * 2014-06-16 2019-07-02 Pgs Geophysical As Method of suppressing spectral artefacts of wavefield decomposition caused by imperfect extrapolation
US20210389391A1 (en) * 2020-06-11 2021-12-16 Technoimaging, Llc System and Method for Reservoir Monitoring Using SQUID Magnetic Sensors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004053528A1 (en) * 2002-12-10 2004-06-24 The Regents Of The University Of California System and method for hydrocarbon reservoir monitoring using controlled-source electromagnetic fields
US20040239330A1 (en) * 2003-05-28 2004-12-02 Weaver W. Harry Electric power grid induced geophysical prospecting method and apparatus
US20040245991A1 (en) * 2000-04-07 2004-12-09 Hayman Andrew J. Formation imaging while drilling in non-conductive fluids
WO2005010560A1 (en) * 2003-06-26 2005-02-03 Exxonmobil Upstream Research Company Method for removing air wave effect from offshore frequency domain controlled-source electromagnetic data
US20050134278A1 (en) * 2002-12-10 2005-06-23 Edward Nichols Subsurface conductivity imaging systems and methods

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792761A (en) * 1987-04-06 1988-12-20 King Thomas C Geophysical prospecting with collimated magnetotelluric fields
US5770945A (en) * 1996-06-26 1998-06-23 The Regents Of The University Of California Seafloor magnetotelluric system and method for oil exploration
GB9818875D0 (en) * 1998-08-28 1998-10-21 Norske Stats Oljeselskap Method and apparatus for determining the nature of subterranean reservoirs
MY131017A (en) * 1999-09-15 2007-07-31 Exxonmobil Upstream Res Co Remote reservoir resistivity mapping
GB0002422D0 (en) 2000-02-02 2000-03-22 Norske Stats Oljeselskap Method and apparatus for determining the nature of subterranean reservoirs
US6381544B1 (en) * 2000-07-19 2002-04-30 Westerngeco, L.L.C. Deterministic cancellation of air-coupled noise produced by surface seimic sources
PT1309887E (en) 2000-08-14 2004-08-31 Statoil Asa METHOD AND APPARATUS FOR DETERMINING THE NATURE OF UNDERGROUND RESERVOIRS
US7769572B2 (en) 2001-09-07 2010-08-03 Exxonmobil Upstream Research Co. Method of imaging subsurface formations using a virtual source array
GB2382875B (en) 2001-12-07 2004-03-03 Univ Southampton Electromagnetic surveying for hydrocarbon reservoirs
US6765383B1 (en) * 2001-12-26 2004-07-20 Anthony R. Barringer Magnetotelluric geophysical survey system using an airborne survey bird
GB2385923B (en) 2002-05-24 2004-07-28 Statoil Asa System and method for electromagnetic wavefield resolution
GB2390904B (en) 2002-07-16 2004-12-15 Univ Southampton Electromagnetic surveying for hydrocarbon reservoirs
GB2411006B (en) 2004-02-16 2006-01-25 Ohm Ltd Electromagnetic surveying for hydrocarbon reservoirs
GB2415511B (en) 2004-06-26 2008-09-24 Statoil Asa Processing electromagnetic data
CA2657475C (en) * 2006-07-13 2017-02-14 Exxonmobil Upstream Research Company Geophysical prospecting with reduced air wave noise
WO2008028083A2 (en) * 2006-08-30 2008-03-06 The Regents Of University Of California Method and system for detecting and mapping hydrocarbon reservoirs using electromagnetic fields

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040245991A1 (en) * 2000-04-07 2004-12-09 Hayman Andrew J. Formation imaging while drilling in non-conductive fluids
WO2004053528A1 (en) * 2002-12-10 2004-06-24 The Regents Of The University Of California System and method for hydrocarbon reservoir monitoring using controlled-source electromagnetic fields
US20050134278A1 (en) * 2002-12-10 2005-06-23 Edward Nichols Subsurface conductivity imaging systems and methods
US20040239330A1 (en) * 2003-05-28 2004-12-02 Weaver W. Harry Electric power grid induced geophysical prospecting method and apparatus
WO2005010560A1 (en) * 2003-06-26 2005-02-03 Exxonmobil Upstream Research Company Method for removing air wave effect from offshore frequency domain controlled-source electromagnetic data

Also Published As

Publication number Publication date
CA2643057C (en) 2015-05-26
NO341466B1 (en) 2017-11-20
WO2007097787A2 (en) 2007-08-30
AU2006338605B2 (en) 2012-01-19
NO20083992L (en) 2008-11-21
US20100233955A1 (en) 2010-09-16
AU2006338605A1 (en) 2007-08-30
CA2643057A1 (en) 2007-08-30
EP1991886A2 (en) 2008-11-19
US8165815B2 (en) 2012-04-24
EP1991886A4 (en) 2012-07-04

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